Truck-crane.



M. HENDRICKSON.

TRUCK CRANE-v APPLICATION FILED DEC.4. 1916,

Patented July 31, 1917.

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M Ira/2x27 53 1 W F m w w UNTTED STATES PATENT @FFTCE. f

MAGNUS HENDRIGKSON, OF CHICAGO, ILLINOIS.

TRUCK- CRANE.

Application filed December 4, 1916.

To uZZ whom it may concern:

Be it known that I, Macros HENDRICK- sex, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented a new and useful THlPl'OVGIIlBIlt inTruck-Cranes, of which the follmving is a specification.

This invention relates particularly to trucks, such as auto-trucks; andthe primary object of the invention is to provide a truck with a craneof a simple and durable construction, which is well adapted to thepurpose of loading and unloading the truck.

The invention is illustrated in its preferred embodiment in theacompanying drawings, in which Figure 1 represents a broken sideelevational view of an auto-truck equipped with my improvement; Fig. 2,a broken elevational view taken substantially as indicated at line 2 ofFig. 1; Fig. 8, a broken vertical sectional view taken as indicated atline 3 of Fig. Fig. at, a horizontal sectional view taken as indicatedat line 4: of Fig. 2; and Fig. 5, a broken side elevational view of thebeam and carriage mounted thereon.

In the construction illustrated, A represents an auto-truck having aframe A a load-platform A and a seat A and B, a crane. or loading andunloading device, mounted on the truck.

The frame r 1 of the truck may be of any approved construction. It ispreferably provided with a load-supporting platform A and equipped nearits front end with a seat A.

The crane B preferably comprises a frontsupporting frame 13 arear-supporting frame 13 a longitudinal beam B mounted in the upperportions of the frames 13 B and disposed over the longitudinal center ofthe platform A the beam B normally occupying substantially a horizontalposition but capable of adjustment so that the beam will incline eitherforwardly or rearwardly somewhat, at the will of the operator; acarriage B mounted on the beam; and a blockand-tackle, or hoist, 13,supported by the carriage B.

The front frame or standard B preferably compriscs vertical angle-bars land 2, which rise from the sides of the main frame in the vicinity ofthe seat A and which are connected at their upper portions by suitablebrace cross-bars 3 and at. The cross-bars 3 and 4 support an auxiliaryframe 5 which Specification of Letters Patent.

Patented July 31, 1917. Serial No. 135,043.

affords a vertical guide in which is mounted a vertically adjustableslide 6, which may be actuated by a vertical screw 7 journaled in theframe 5 and equipped at its lower end with a crank 8. The verticallymovable slide 6 is provided with rearwardly projecting ears 6*, havingperforations 6 The block, or slide 6 may be raised or lowered by turningthe screw 7 through the medium of the crank 8. The front end of the beamB is equipped with pivot-plates 9, connected by a bolt or pivot 10 withone of the pivotlugs 6 The rear standard or frame B comprises uprightbars 11 and 12, which rise from the rear corners of the truck-frame andare rigidly connected at their upper ends by a cross-bar 13. Thus, therear frame B is an open rectangular frame through which the beam B mayextend, and through which the heavy objects which are to be loaded or anloaded may pass.

The beam B has its rear portion extending rearwardly through the frame13 the rear extremity of the beam being at any desired distance in therear of the said frame. The beam is equipped near the cross-member 13with a pivot-plate 141, which is connected by a pivot 15 with thepivot-platelG with which the cross-bar 13 is equipped at a centralpoint. The rear end of the beam B is provided with a clevis, or loop 17,which may be used for any desired purpose.

The carriage B may be of any desired construction. It has a frame 18,which depends from wheels 19, mounted on flanges 20 with which the beamB is provided. The frame 18 is provided with depending lugs 21, withwhich is connected, by a pivot 22, the short arm 23 of an angular lever,which has depending arm or handle 24. The arm 23 has a portion 23 whichprojects be-- yond the pivot 22 and is equipped with an upward extensionor stud 25, which engages a friction-stop 26. The friction-stop is inthe form of a leaf-spring, which is secured by rivets to a bracket 27,which is rigid with the frame 18 and projects from one end thereof abovethe arm 23 of the angular lever. Interposed between the bracket 27 andthe arm 23 of the lever is a coil-spring 28, whose function is tonormally depress the lever and cause the stud 25 to force thefriction-stop into engagement with the lower surface of the beam B Theblock-and-tackle B may be of any suitable construction. Preferably it isof such a nature as to enable large blocks oi stone or other heavyobjects, to be readily lifted, by manipulating the chain by hand.

From the description given, it will be understood that the carriage 3*may travel from the front end of the beam B to the rear end thereof;also that the beam B may be readily adjusted to give either a for- Wardor a rearward inclination to the beam; and that the carriage 13* may beeasily controlled in its movements, even when under a heavy load, by thei'rictioirstop or brakeshoe and tl e controlling lever described. Thus,when the carriage is und r load, the beam B may be tilted so as to givea down grade in either direction, according to whether one is loading orunloading, and the carrier may be allowed to move by gravity, thebrake-shoe being relieved from its braking action. through the medium ofthe controlling lever 24:. An adjustment of a few inches at the frontend of the beam is sufiicient to give the desired inclination, and suchadjustment is readily permitted by the natural looseness in the pivotalconnections of the beam. 7

The construction described is simple, and Well adapted to its purpose.It enables inassive stone or other heavy objects to be loaded andunloaded by one man with greatest facility; and this can be accomplishedWithout the necessity of power-actuated mechanism. The foregoingdetailed description has been given for clearness of understanding only,and no unnecessary limitation should be understood theretroni, but theappended claims should be construed as broadly as permissible in View ofthe prior art.

hat I regard as nevv and desire to secure by Letters Patent is:

l. in means of the character set forth,

i SlUQPOl'tl'ilQ' franes. of r the combination with a trunk-bodyequipped with SUPIMH'tiDg frames, of a longitudinal bcain, disposedabove the truclebody, conuections betu'ee said beam and said firaines,whereby the beam may be adjusted with reference to the horizontal, a graitating traveling hoisting device mounted on said beani, a brake-shoecarried thereby and adapted to engage the leain, and a controlling leverfor said brake-shoe.

.2. In means of the character set forth, the combinationwith atruck-bodyequipped *ith longitudinal beain, disposed bore thetruck-body, connections between said beam and said frames, whereby thebeam may be adjusted with reference to the horizontal, a gravitycarriage inounted on said beam and equipped with a hoist ing' device, abrake-shoe mounted on said carri re, and means normally holding saidbrake-shoe in engagement vvith said beam, said means equipped with areleasing device.

In means of the character set forth, the combination with a true r-body,of a rectangular rear frame rising from the rear corners of thetruck-body, a longitudinal beam extending; through said frame andpivotally connected with the cross-member th reof, a front yerticalframe, equipped at its upper portion with a guide, a screw-actuatedslide connected with said guide, pivotal connections between said slideand the front end of said bezun, a gravity carrier mounted to travel onsaid beam and equipped with a manual hoisting; device, and a normallyengaged mounted on said carrier and equipped with releasing i'ueans,inclut ing a dependi 1 arm \YQiCi may be'grasped by the operator,whereby the gra itating movement of the carrier may be regulated at willwhen the beam is inclinec.

MAGE US HENDRICKSOY.

nopiss of this patent may he obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D, Q.

